Arianna runs up 4.5 flights of stairs. How far will Arianna have to run down to represent an additive inverse?

You’re repairing a large rectangular aquarium. the final step is to cover the glass with a protective film. the front and back of the aquarium measure 4 meters by 2 meters, and the sides of the aquarium measure 3 meters by 2 meters. how many square meters of protective film do you need? ( )

Which of the following are accepted without proof in a logical system? check all that apply.

Which of the following best describes the delian problem?